31023200122002 has 96 divisors (see below), whose sum is σ = 76623885321984. Its totient is φ = 9329206395600.

The previous prime is 31023200121983. The next prime is 31023200122007. The reversal of 31023200122002 is 20022100232013.

31023200122002 is a `hidden beast` number, since 310 + 2 + 320 + 0 + 12 + 20 + 0 + 2 = 666.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is not an unprimeable number, because it can be changed into a prime (31023200122007) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 21448788 + ... + 22849439.

It is an arithmetic number, because the mean of its divisors is an integer number (798165472104).

Almost surely, 2^{31023200122002} is an apocalyptic number.

31023200122002 is an abundant number, since it is smaller than the sum of its proper divisors (45600685199982).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

31023200122002 is a wasteful number, since it uses less digits than its factorization.

31023200122002 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 44298386 (or 44298374 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 18.

Adding to 31023200122002 its reverse (20022100232013), we get a palindrome (51045300354015).

The spelling of 31023200122002 in words is "thirty-one trillion, twenty-three billion, two hundred million, one hundred twenty-two thousand, two".